11521222177070 has 16 divisors (see below), whose sum is σ = 20744348274720. Its totient is φ = 4607122569504.

The previous prime is 11521222177057. The next prime is 11521222177097. The reversal of 11521222177070 is 7077122212511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170752250 + ... + 170819709.

It is an arithmetic number, because the mean of its divisors is an integer number (1296521767170).

Almost surely, 2^{11521222177070} is an apocalyptic number.

11521222177070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11521222177070 is a deficient number, since it is larger than the sum of its proper divisors (9223126097650).

11521222177070 is a wasteful number, since it uses less digits than its factorization.

11521222177070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341575339.

The product of its (nonzero) digits is 27440, while the sum is 38.

Adding to 11521222177070 its reverse (7077122212511), we get a palindrome (18598344389581).

The spelling of 11521222177070 in words is "eleven trillion, five hundred twenty-one billion, two hundred twenty-two million, one hundred seventy-seven thousand, seventy".